Tempebatttbe begttlatob fob cooling systems of intebnal-combtjstion



July 31, 1923. 1,463,510

L. W. JONES TEMPERATURE REGULATOR FOR COOLING SYSTEMS OF INTERNAL COMBUSTION ENGINES Filed March 21, 3.923

W'W I F Patented July 31, 1923.

UNITED STATES 1,463,510 PATENT OFFICE.

LOUIS W. JONES, OF BALTIMORE, MARYLAND.

TEMPERATURE REGULATOR FOR COOLING SYSTEMS F INTERNAL-COMBUSTION ENGINES.

Application filed March 21,}923. Serial No. 626,716.

My invention relates to a temperature regulator for the cooling systems of internal combustion engines.

Among the objects of my invention are To provide a temperature regulator which shall maintain theengine at a sufliciently high temperature durin cool weather to enable it to start prompt y.-

To provide a temperature regulator comprising means for circulating the water through the cooling system ofan internal combustion engine, which means are controlled by automatic devices sol that they will become effective when the temperature of the water in the cooling; system of the engine decreases below a; predetermined limit. V a 7 To provide means for heating the water in the cooling system of an-iinternal combustion engine whenever the temperature of ltlue water decreasesbelow a predetermined imit. I

These and 1 other objectsof my invention will come apparent in the following specification, reference being had to, the accompanymg drawings, and the means by which said ob'ects are eflectuated-willbe definitely points out in the claims.

In the drawin I Figure 1 is a SldQVleW of an terual combastion engine equipped with my improved temperature regulator. r Fig. 2 is a diagram of the connections.

In the draWingsg- 5 is an engine rovided with the usual water jacket 6. aid water 'acket is connected by the duct 7 withtt e top of the radiator 8. The bottom of the radiator is connected by the duct 9 with the pump 10 and the latter is connected by the duct 11 with the water jacket 6.

The pump 10 is to be operated in any usual or approved manner, its purpose beswitch 24 is clomd, electricit from the: storage battery -19 t ing to circulate the water through the jacket 6 and radiator 8. The radiator 8.is to be cooled in any usual or approved manner as by the usual fan, not shown.

A duct 12 leads from the duct 9 to the auxiliary pump 13. The duct 14 leads from the pump 13 to the heater 15 and the duct 16 leads from said heater to the duct 11.

The heater 15 is divided into an upper and lower compartment. Through the cp per compartment passes the'water of the coolingsystem and a heating element 17 is mounted in the lower compartment for a purpose hereinafter explained;

The pump 13 is to be driven by the elec-- tric motor 18 which receives current from the storage battery 19.

Rheostats 20 and 21 comprising the controlling'hand'les 22 and 23 are employed for controlling respectively the s eed' of the" motor 18 and the heat evolve by the element 17. The main switch 24 is preferably mounted upon the instrument board.

Thermostats 25 and 26 are mounted'upoii" the duct 9 adjacent the radiator '8 for the purpose of-controlling the motor 18 and the heating element 17, respectively.

The operation of my improved temperature regulator is as follows: l t In starting, if the engine 5is cool the contacts of the thermostats 25 and 26 will be in electric connection so that-when the main will pass rough" said thermostat and through the heatingeleme'nt 17 -and motor -18:-The motor 18 will=then operate the pump 13' to circulate" through the water jacket 6 and radiator 8 and the heating element 17 will begin to heat said water. By moving the handles 22 and 23, the

speed of the motor 18 and the heating'efiect of the element 17 may be both varied s'o-tliat the cooling water may be heated to any de-'--- sired temperature before'starting.

After the motor 18 and heating element 17 produce their respective effects for a sufficient length of time the cooling water will reach such a temperature that the contacts" of the thermostats 25 and 26 will separate, thus stopping the motor 18v and terminating the heating effect of the element 17.

If the engine 5 is started but cools oil', the contacts of the thermostat 25 will close and start-the motor 18 to againjnitate the circulation of the cooling water; -he motor 18 will then run until the cooling water reaches a certain predetermined low temperature and then the contacts of the thermostat .26 will close, rcausi w a current of electricity to pass through ilie heating ele' ment 17 which will raise the temperature of the cooling water.

When the engine 5 is started and it has run sufiiciently Ilong to heat up the cooling water to a predetermined temperature, then the contacts of the thermostats and 26 will both be opened and the circulation of the-cooling water will be carried on entirely by the pump 10,

After the engine 5 has been running the car has been stopped, the -e inc and cooling water commence to cool 0 but the cooling. water' chills faster than the engine along the duct 9 e i .the. -water in the duct -9 reaches a. predetermined temperature, ithe' thermostat 25 is set to start-the motpr-;18:,;the motor 18' then.dri-ves the ipnmp 13-at a; slow rate of .speed and circulates the -cooling,waLter slow- 1y, thus maintaining it etlen approximately even temperature at all pants of-the cobling systerm When the temperamre-of the cooling water reaches-a. secondredtermined limit; which .is lower than ttheimit at which the contacts of the thermostat 25"closed. as before expl-eined; than the mntacts of the thermostat 26 diesel-end the heating; element 17 becomes effective; heating-the circulating wrote:- to {improper degreeto keep the en- =gme;sufiic ently warm enable itzto'start readily.

It is to be noted that after the'firsfstarting of the engine 55,-tthe hhndlear22 and 23' are to be moved tom, position-ii! which the whole resistance of :therrhebstets 20 and 21 trill be included intheir respective-circuits l-l'l oifder to prdvide for eslow peedo'f'the motor 18 and a modetaterheating effect ofthe element {Hf-when 'nly'imprdved 're'fiw later is operating asiustilescrlbed in order to maintain -the temperature of the engine 5 :ita sufficiently high pointfo'r starting.

.While 1 hiive shown the-pump 1311s an auxiliary of the pump 10, it is to be'nnderstood that the pump 10 maybe disconnected 'fi orn the circulating sysfem arid the ducts 92and 11 1 closed '11s at?! iihd 28. with this variation in my improved regiilaton'jan automatic Eswitch 29' is provided; (not shown in Fig-. -in -iforthe' purpose cit-closing the circuit from the ordinary generator 30 through the motor 18 whenever the potential of the gehemtor 30 IIEQ ChQSE B. predetermined liiiiit- "While I zhai e shown one preferred form of my-inviention, it ls"to"be understood that this :is'for pntposes of illustration b'nlj and in no wise to limit the scope thereof, for

.and

with Heating water reaches a with heatln coils for heating said water, :1 =1- source of e ectrical energy, electric circuits includingsaid motor, coils and source a thermostat for closing the circuit through said motor when the temperature of said water reaches a predetermined limit a second thermostat adapted to close the circuit through said coils when the temperature of sitid cooling system reaches a second predetermined limit lower 'than said first named dimit, and rheostats in said motor and heater circuits'.

2. In the cooling system for the water of an-internal combustion engine, the combivnation of in; electric motor driven pump for circulating said water a. heater provided with heiitln coils for heatinv said'waten a -so'urce-of e ectric'all energy. dl ectric'circuits including said motor,coils and source, a thermostat 'fbrclosing -the circuit through said motor when the temperature of, saidwater-"ielwhes a 'predeter'mi'ned limit, -a second thermostat adapted to close the circuit through said cO'ilS when the temperature of said cooling system reaches a second predetermined limit. 3; 'In'the cooling system for the water of an internal combustion engine, the com'bi- "mition'ofnii electric motor driven pump for circulating said water, a heater provided "soils for 'heatingsaid water, source "(if e ectrical energ electric circuits 'inclddin sa'id'inotor, coils and source. a thermos at for closing the circuit through said motor when the temperature of sa'irl biedetermined limityusec 'o'n'd 'therrfldstat -gfdziitpte'd to close the .c'ircuit 'throughsaid coils when the temperature of siiid coolilrtg'system reaches a second predetermined limit. and a handopcratcd switch for disconnecting'said source froni" said circuits. I I

'4. Ii'i the cooli'nfi system for the ifnter of an internal combustion engine, the combination of a generator'dri'ren by said engine,

it! electric motor drii'en pump for c ir cnlat" an internal combustion engine, the combi' nation of an electric motor driven pump fofcirculating said water, a source of electricity, an electric circuit including said motor and source, means for closing said circuit whenever the temperature of said water reaches a predetermined limit, and a second pump for circulating said water driven by said engine.

6. In the cooling system for the water of an internal combustion engine, the combination of an electric motor driven pump for circulating said water, a source of electricity, an electric circuit including said motor and source, means for closing said circuit whenever the temperature of said water reaches a predetermined limit, a second pump for circulating said water driven by said engine, a rheostat for heating said water and means for closing the circuit from said source through said rheostat whenever the temperature of said water reaches a predetermined limit.

In testimony whereof, I afiix my signa ture.

LOUIS W. JONES. 

